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nkaminar · 10-10-2023, 11:45 AM

An air filter that really filters the air will reduce wear in any engine. Carburetors that are designed to use an air filter will have the vent to the float bowl routed to just in front of the choke so that any restriction in air flow does not enrichen the mixture. If you want to add a real air filter to your Zenith then modify it to vent the float bowl to just in front of the choke. Plans for doing this have been published on the Barn.

A lot of race cars do not use air filters because they lower the amount of air the engine can suck in. However, these engines get rebuilt often and are not driven daily.

10-10-2023, 11:45 AM	#10
nkaminar Senior Member Join Date: Jan 2012 Location: Western North Carolina Posts: 3,996	Re: Air Filter or not An air filter that really filters the air will reduce wear in any engine. Carburetors that are designed to use an air filter will have the vent to the float bowl routed to just in front of the choke so that any restriction in air flow does not enrichen the mixture. If you want to add a real air filter to your Zenith then modify it to vent the float bowl to just in front of the choke. Plans for doing this have been published on the Barn. A lot of race cars do not use air filters because they lower the amount of air the engine can suck in. However, these engines get rebuilt often and are not driven daily. __________________ A is for apple, green as the sky. Step on the gas, for tomorrow I die. Forget the brakes, they really don't work. The clutch always sticks, and starts with a jerk. My car grows red hair, and flies through the air. Driving's a blast, a blast from the past.